Comparison of ASUS Radeon RX 5700 XT 8G video card vs Sapphire Pulse Radeon RX 590 8G G5 video card by specs and benchmarks. ASUS Radeon RX 5700 XT 8G runs at 1.605 GHz base clock speed and has 8 GB of GDDR6 memory, while video card Sapphire Pulse Radeon RX 590 8G G5 runs at 1.605 GHz base clock speed and has 8 GB of GDDR5 memory. The weight is different, -- vs --. The TDP of the first video card is 225 W, and the second is 225 W . Compare the benchmark results to find out which video card is better.